Gentle Geyser is the second stage in Volkanos Volcano.
- 10 Mooths spawn after 0 seconds0f, delay 1.67~2 seconds50f~60f.
- 1 J.K Bun Bun spawns as the boss after 22 seconds660f.
Also, you can use anti-red to quicken the process (Sushi Cat, Axe Cat...). Have a Bahamut Cat or Valkyrie Cat, or basically any other long-ranged cats in the game (Lizard Cat, Gross Cat, Nerd Cat...).